Tough HDPE shell which is far tougher than the EN 397 standard required. A six point terylene cradle for superior comfort. Chamlon™ sweatband for maximum sweat absorption. 3D precision fitting using the unique 1-2-3 point harness depth settings. OneTouch™ Slip Ratchet adjustment. Universal slots enables easy fitting of Surefit™ safety visors and ear defenders.